Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6499346 | Filling level measuring device operating with microwaves | Klaus-Peter Oberle, Alexander Hardell, Stefan Burger | 2002-12-31 |
| 6202485 | Filling level measuring device operating with microwaves | Klaus-Peter Oberle, Alexander Hardell, Stefan Burger | 2001-03-20 |